14 Geeks Share The Craziest Science Trivia They Know

Because fluid dynamics is stupid, particles can be pulled up a downward-flowing stream of water, contaminating the source. You can pour from a pitcher into a glass, without touching the vessels, and have bits from the glass wind up in the pitcher.https://t.co/tMc2fGJjFCpic.twitter.com/fOvTVdI24r

Horseshoe crabs (and a few other invertebrate organisms) have blood that functions nearly identically to ours, but it's blue instead of red because the molecule that fixes oxygen for them is copper-based hemocyanin rather than iron-based hemoglobin.